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5.6 Preparation
Assembly Preparation
The gear assembly must be carried out very carefully and within a clean environment. Please make sure that during the as-
sembly procedure no foreign particles enter the gear.
General information
Clean, degrease and dry all mating surfaces to ensure an adequate coefficient of friction. The values given in table 8 are valid
for 12.9 quality screws which must be tightened by means of a torque wrench. Locking devices such as spring washers or
toothed washers should not be used.
Auxiliary materials for assembly
For the assembly, we recommend the application of the following auxiliary materials or the use of those with similar cha-
racteristics. Please pay attention to the application guidelines given by the manufacturer. Auxiliary materials must not enter
the gear.
Surface sealing
• Loctite 5203
• Loxeal 28-10
Recommended for all mating surfaces, if the use of o-ring seals is not intended. Flanges provided with o-ring grooves must
be sealed with sealing compound when a proper seal cannot be achieved using the o-ring alone.
Screw fixing
• Loctite 243
This adhesive ensures that the screw is fixed and also provides a good sealing effect. Loctite 243 is recommended for all
screw connections.
Assembly paste
• Klüber Q NB 50
Recommended for o-rings which may come out of the groove during the assembly procedure. Before starting with the
assembly you should spread some grease (which you can take from the gear) on all other o-rings.
Adhesives
• Loctite 638
Apply Loctite 638 to the connections between motor shaft and Wave Generator. You should make use of it only if this is
specified in the confirmation drawing.
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11/2014
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